Transcript pond water food web practice

Pond Water Food Webs
http://www.cod.edu/people/faculty/fancher/FoodChain.htm
1. Which organisms are the producers?
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Food Web Graphic - http://staff.harrisonburg.k12.va.us/~gharper/bay/weboflifepage/foodweb.jpg
2. Identify the consumers...
C – Carnivore
O – Omnivore
H – Herbivore
P - Planktivore
#3
What would happen if the mussels were to die out due to a disease?
#4
How would the zooplankton be affected if the fish population were to increase?
#5
How would the whelk population be affected if crabs were removed?
Now it’s your turn to create a food web!
4. Cut apart the Life in a Pond cards and sort them into three categories:
producers, consumers, and decomposers. Create four food chains in the
space below. Remember, each food chain must start with a producer!
5. Use at least 10 of the cards to create a food web to show the
relationship between the organisms in a pond habitat. You must use the
three cards with stars! The diet of each organism is under its name on
the card to you know what eats what, the only exception are the
producers.
After you have created the food web, draw the food web on the back of
your paper. Make sure you begin with a producer.
Remember – Arrows go to the organism that does the eating!
6. Answer the questions on your worksheet.
6. After you have finished your web, answer these questions.
What would happen to your food web if the aquatic plants died out because
of pollution?
What would happen to your food web if the population of great blue heron
was to double?
Asian carp consume zooplankton, which many fishes typically feed on in
their juvenile stages, and have no known predators. How would the
introduction of an Asian carp affect your food web?